Henry Schilbach Karoline Schönbrunn Susanne Strahringer Off-the-Shelf Applications in Higher Education: A Survey on Systems Deployed in Germany. 242-253 2009 BIS (Workshops) http://dx.doi.org/10.1007/978-3-642-03424-4_30 conf/bis/2009w db/conf/bis/bisw2009.html#SchilbachSS09